Sensory Training for Visual Motion Sickness

Healthy Participants: Inclusion Criteria: Participants must * have normal self-reported cognitive function * speak English fluently * weigh less than 225 pounds and be less than 6'4" * be able to support their body weight in an upright posture for 15 minutes at a time * be able to follow the guidelines regarding permitted and prohibited additional treatments outlined in this protocol Exclusion Criteria: Participants must not * be pregnant or planning to become pregnant while in "on study" status * have best-corrected visual acuity \> 20/70 * have a self-reported, uncompensated, binocular vision abnormality, such as strabismus, amblyopia, or diplopia * have peripheral neuropathy * have a self-reported history of frequent syncope (\>1/month) Participants with Visually-induced Dizziness: Inclusion Criteria: Participants must * have self-reported symptoms of visually-induced dizziness * have normal self-reported cognitive function * speak English fluently * weigh less than 225 pounds and be less than 6'4" * be able to support their body weight in an upright posture for 15 minutes at a time * be able to follow the guidelines regarding permitted and prohibited additional treatments outlined in this protocol Exclusion Criteria: Participants must not * be participating in vestibular and balance rehabilitation therapy and/or be pregnant or planning to become pregnant while in "on study" status * have best-corrected visual acuity \> 20/70 * have a self-reported, uncompensated,…